package com.lxw.DescriptPatterns.MaterialObject;import com.lxw.DescriptPatterns.BaseObject.Beverage;import com.lxw.DescriptPatterns.DescriptObject.CondimentDecorator;public class Soy extends CondimentDecorator {    Beverage beverage;    public Soy(Beverage beverage) {        this.beverage = beverage;    }    public String getDescription() {        return beverage.getDescription()+",豆浆";    }    public double cost() {        return 0.55+beverage.cost();    }}